RockWoof
Check access before you go. Most sites listed here are old mines, quarries or prospects, and many are on private land or active mining claims. Get the landowner's permission, check the rules of the agency that manages any public land, and never enter mine workings. Locations are approximate.

Sketch map

Ilmenite Occurrence (Occurrence)Golden Granite Quarry (Past Producer)Nurse Farm Prospect (Prospect)Litchfield (Occurrence)Longfellow Ledge Quarry + 2 more nearby (Past Producer)Iron Hill Prospect (Prospect)Winslow Tin Mine (Past Producer)Winslow Tin (Past Producer)
Past ProducerProducerProspectOccurrenceStatus unknown
8 paw pins; nearby sites are grouped into one pin. Hover or tap a pin for the site name. County outline: US Census Bureau cartographic boundary file (2023). Locations approximate.

Woof’s favorite find

Nurse Farm Prospect

We picked it because its USGS record mentions 2 of the minerals on our cards and 2 of our card minerals overall. No other named site here scores as high on both counts. USGS lists it as prospect for Feldspar. Minerals mentioned: Mica, Feldspar. Approx. location 44.501, -70.010. USGS record.

Ask first: a USGS record doesn’t mean you can visit. Find out who owns the land and get permission before collecting.

Field cards: what kind of sites?

6
Past Producer

Produced ore or material at some point in the past.

2
Occurrence

The mineral was noted here, without development.

2
Prospect

Explored or test-dug, with no recorded production.

Status terms come from USGS MRDS records.

Mineral cards

Counts are sites whose USGS record mentions the mineral or commodity. Hardness from Mindat.

Minerals recorded here

Pyrochlore 1Cassiterite 1Galena 1

Commodities

Granite 4Niobium (Columbium) 1Tin 1Feldspar 1Titanium 1Nickel 1

Sites

SiteCommodityMinerals recordedStatusApprox. location
Winslow Tin MineTinCassiterite, GalenaPast Producer44.519, -69.649
LitchfieldNiobium (Columbium)PyrochloreOccurrence44.200, -69.916
Winslow Tin——Past Producer44.533, -69.616
Longfellow Ledge QuarryGranite—Past Producer44.307, -69.832
Nurse Farm ProspectFeldspar—Prospect44.501, -70.010
Ilmenite OccurrenceTitanium—Occurrence44.312, -70.089
Melvin QuarryGranite—Past Producer44.307, -69.812
Haines Ledge QuarryGranite—Past Producer44.310, -69.830
Iron Hill ProspectNickel—Prospect44.211, -69.784
Golden Granite QuarryGranite—Past Producer44.326, -70.054

Fossil collections

The Paleobiology Database lists 5 fossil collection records in Kennebec County. These are research records, not public dig sites.

Nearby counties

Lincoln County · Sagadahoc County · Androscoggin County · Cumberland County · Oxford County

Maine mineral guides

Back to all Maine counties.

Related articles

How we built this page: we counted named sites in the USGS Mineral Resources Data System (MRDS) for this area, left out sand, gravel, crushed stone, clay pits and unnamed sites, grouped them by Census county, and linked every site to its USGS record. We did not visit these sites, and MRDS does not tell you who owns the land or whether collecting is allowed.

Source: USGS Mineral Resources Data System (MRDS). USGS ceased systematic updates to MRDS around 2011, so status and details may be out of date. Each site links to its USGS record.

Updated